<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图 -->
    <el-card>
      <!-- 为 ECharts 准备一个定义了宽高的 DOM -->
      <div id="main" style="width: 750px;height:400px;"></div>
    </el-card>

  </div>
</template>

<script>
  //导入echarts
  import * as echarts from 'echarts'
  import _ from 'lodash'

  export default {
    created() {

    },
    //页面渲染完毕
    async mounted() {
      // 基于准备好的dom，初始化echarts实例
      var myChart = echarts.init(document.getElementById('main'));

      const {data:res} = await this.$http.get("reports/type/1")
      if(res.meta.status !== 200) return this.$message.error(res.meta.msg)

      // 指定图表的配置项和数据
      const result = _.merge(res.data,this.options)
      // const result = Object.assign(this.options,res.data)

      // 使用刚指定的配置项和数据显示图表。
      myChart.setOption(result);

    },
    data() {
      return {
        //需要合并的数据
        options: {
                title: {
                  text: '用户来源'
                },
                tooltip: {
                  trigger: 'axis',
                  axisPointer: {
                    type: 'cross',
                    label: {
                      backgroundColor: '#E9EEF3'
                    }
                  }
                },
                grid: {
                  left: '3%',
                  right: '4%',
                  bottom: '3%',
                  containLabel: true
                },
                xAxis: [
                  {
                    boundaryGap: false
                  }
                ],
                yAxis: [
                  {
                    type: 'value'
                  }
                ]
              }
      }
    },
    methods: {

    }
  }
</script>

<style lang="less" scoped>


</style>
